I was wondering if anybody knew of the function and process of the TCTE-1 receptor during the binding of a sperm with an egg. The only think I know of TCTE-1 is that it is a species-specific receptor.
...

I am trying to figure out how prostaglandins in the semen relate to the female reproductive tract.
More specifically,
How does prostaglandins in semen help the female reproductive tract increase the ...

Can the lipid-soluble hormones (like steroid hormones) go inside every cell, as their particular receptors are located in the cytoplasm or nucleus of the target cells? Is there anything special on the ...

Is it possible to have both type-1 (insulin-dependent) and type-2 (non-insulin-dependent) diabetes mellitus? That is, to have both insulin resistance and zero (or negligible) insulin production? If ...

I have given my high school biology students the thought experiment of "What would happen if a researcher induced twinning of a female zygote and then replaced one of the X Chromosomes with a copy of ...

I learned that the adrenal medulla releases epinephrine, which is a vasodilator of the vessels that lead to the skeletal muscle.
I also learned that somatic nervous system only uses Achetycholine as ...

A friend of mine asked me this today, and I didn't know. I remember studying the menstrual cycle a few years ago, but I can't remember the details (other than it was very hormone-related), and so I ...

I'm looking at the wikipedia article on Melatonin and noticed that it mentions vivid dreaming caused by melatonin. I have the "Melatonin and the Biological clock" pamphlet referenced in the article, ...

This is a follow-up question to If D1 receptors stimulate adenylate cyclase (through GPCRs) and D2 receptors inhibit it, then why do mutations in both have similar effects?.
As a further question - ...

I'm reading this article onblood sugar and circadian rhythms and the following question popped into my head: a lot of articles mention various diurnal or circadian rhythmicity of biological processes. ...

I know that ingesting testosterone and other hormonal drugs may stimulate libido and increase sexual desire.
But I wonder, if a man ingests female hormones such as estrogen, will he experience sexual ...

I am trying to find information on Prostaglandin F2-alpha, specificaly production in men. Could somebody explain how this prostaglandin is produced? What types of cells are producing it, production ...

The adrenal medulla is less of a 'real' endocrine organ like the others in the endocrine system and much more an extension of the sympathetic nervous system. In fact, its chromaffin cells are modified ...

When producing insulin, the gene for its production is inserted into the plasmid of a bacterium that is allowed to replicate freely.
Why can't the same thing be done with antibodies (as I understand ...

What is the mechanism of insulin stimulation in the human body?
Is leptin release stimulated by circulating insulin directly? Which other factors are involved in the level of insulin release? My goal ...

In order to put human DNA inside a bacteria in order to have it create Insulin, from what type of cell would you need to take the gene for insulin?
I thought it should be from any somatic cell, since ...

I'm wondering how it is possible to measure diurnal variations of melatonin levels in humans. I keep reading that there should be a large difference in amplitude between melatonin levels measured at ...

I'm looking to understand the effects of sugary snacks and/or drinks on a human body. I'm particularly interested in the timing of the ingestion versus various hormonal levels that may be circadian in ...

A while ago I picked up a book called "Eat right for your metabolic type". The book discussed the effects of the endocrine system on the overall shape and the speed of metabolism.
The book outlined ...